Compositae Working Group (CWG) (2021). Global Compositae Database. Carduus perennans Greene. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1166970 on 2025-03-08
original description(1898). Bull. Torrey Bot. Club 25 page(s): 123 [details]
Unreviewed
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Bull. Torrey Bot. Club [IPNI] Bulletin of the Torrey Botanical Club 25(3): [Tropicos] [details] LSID urn:lsid:compositae.org:names:CCB359B5-CF96-4710-B670-0972A9C6301E [details]